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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / net / ethernet / sfc / ethtool_common.c
blob2d734496733fad04d38aa9b467c9393cc3878c3d
1 // SPDX-License-Identifier: GPL-2.0-only
2 /****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2019 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10 #include <linux/module.h>
11 #include <linux/netdevice.h>
12 #include "net_driver.h"
13 #include "mcdi.h"
14 #include "nic.h"
15 #include "selftest.h"
16 #include "rx_common.h"
17 #include "ethtool_common.h"
18 #include "mcdi_port_common.h"
19
20 struct efx_sw_stat_desc {
21 const char *name;
22 enum {
23 EFX_ETHTOOL_STAT_SOURCE_nic,
24 EFX_ETHTOOL_STAT_SOURCE_channel,
25 EFX_ETHTOOL_STAT_SOURCE_tx_queue
26 } source;
27 unsigned int offset;
28 u64 (*get_stat)(void *field); /* Reader function */
29 };
30
31 /* Initialiser for a struct efx_sw_stat_desc with type-checking */
32 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
33 get_stat_function) { \
34 .name = #stat_name, \
35 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
36 .offset = ((((field_type *) 0) == \
37 &((struct efx_##source_name *)0)->field) ? \
38 offsetof(struct efx_##source_name, field) : \
39 offsetof(struct efx_##source_name, field)), \
40 .get_stat = get_stat_function, \
41 }
42
43 static u64 efx_get_uint_stat(void *field)
44 {
45 return *(unsigned int *)field;
46 }
47
48 static u64 efx_get_atomic_stat(void *field)
49 {
50 return atomic_read((atomic_t *) field);
51 }
52
53 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
54 EFX_ETHTOOL_STAT(field, nic, field, \
55 atomic_t, efx_get_atomic_stat)
56
57 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
58 EFX_ETHTOOL_STAT(field, channel, n_##field, \
59 unsigned int, efx_get_uint_stat)
60 #define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \
61 EFX_ETHTOOL_STAT(field, channel, field, \
62 unsigned int, efx_get_uint_stat)
63
64 #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
65 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
66 unsigned int, efx_get_uint_stat)
67
68 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
69 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
72 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
73 EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),
74 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
75 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
76 EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
77 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err),
81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),
85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_overlength),
87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
93 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),
94 #ifdef CONFIG_RFS_ACCEL
95 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
96 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
97 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
98 #endif
99 };
100
101 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
102
103 void efx_ethtool_get_drvinfo(struct net_device *net_dev,
104 struct ethtool_drvinfo *info)
105 {
106 struct efx_nic *efx = efx_netdev_priv(net_dev);
107
108 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
109 efx_mcdi_print_fwver(efx, info->fw_version,
110 sizeof(info->fw_version));
111 strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
112 }
113
114 u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
115 {
116 struct efx_nic *efx = efx_netdev_priv(net_dev);
117
118 return efx->msg_enable;
119 }
120
121 void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
122 {
123 struct efx_nic *efx = efx_netdev_priv(net_dev);
124
125 efx->msg_enable = msg_enable;
126 }
127
128 void efx_ethtool_self_test(struct net_device *net_dev,
129 struct ethtool_test *test, u64 *data)
130 {
131 struct efx_nic *efx = efx_netdev_priv(net_dev);
132 struct efx_self_tests *efx_tests;
133 bool already_up;
134 int rc = -ENOMEM;
135
136 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
137 if (!efx_tests)
138 goto fail;
139
140 if (!efx_net_active(efx->state)) {
141 rc = -EBUSY;
142 goto out;
143 }
144
145 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
146 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
147
148 /* We need rx buffers and interrupts. */
149 already_up = (efx->net_dev->flags & IFF_UP);
150 if (!already_up) {
151 rc = dev_open(efx->net_dev, NULL);
152 if (rc) {
153 netif_err(efx, drv, efx->net_dev,
154 "failed opening device.\n");
155 goto out;
156 }
157 }
158
159 rc = efx_selftest(efx, efx_tests, test->flags);
160
161 if (!already_up)
162 dev_close(efx->net_dev);
163
164 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
165 rc == 0 ? "passed" : "failed",
166 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
167
168 out:
169 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
170 kfree(efx_tests);
171 fail:
172 if (rc)
173 test->flags |= ETH_TEST_FL_FAILED;
174 }
175
176 void efx_ethtool_get_pauseparam(struct net_device *net_dev,
177 struct ethtool_pauseparam *pause)
178 {
179 struct efx_nic *efx = efx_netdev_priv(net_dev);
180
181 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
182 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
183 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
184 }
185
186 int efx_ethtool_set_pauseparam(struct net_device *net_dev,
187 struct ethtool_pauseparam *pause)
188 {
189 struct efx_nic *efx = efx_netdev_priv(net_dev);
190 u8 wanted_fc, old_fc;
191 u32 old_adv;
192 int rc = 0;
193
194 mutex_lock(&efx->mac_lock);
195
196 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
197 (pause->tx_pause ? EFX_FC_TX : 0) |
198 (pause->autoneg ? EFX_FC_AUTO : 0));
199
200 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
201 netif_dbg(efx, drv, efx->net_dev,
202 "Flow control unsupported: tx ON rx OFF\n");
203 rc = -EINVAL;
204 goto out;
205 }
206
207 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
208 netif_dbg(efx, drv, efx->net_dev,
209 "Autonegotiation is disabled\n");
210 rc = -EINVAL;
211 goto out;
212 }
213
214 /* Hook for Falcon bug 11482 workaround */
215 if (efx->type->prepare_enable_fc_tx &&
216 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
217 efx->type->prepare_enable_fc_tx(efx);
218
219 old_adv = efx->link_advertising[0];
220 old_fc = efx->wanted_fc;
221 efx_link_set_wanted_fc(efx, wanted_fc);
222 if (efx->link_advertising[0] != old_adv ||
223 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
224 rc = efx_mcdi_port_reconfigure(efx);
225 if (rc) {
226 netif_err(efx, drv, efx->net_dev,
227 "Unable to advertise requested flow "
228 "control setting\n");
229 goto out;
230 }
231 }
232
233 /* Reconfigure the MAC. The PHY *may* generate a link state change event
234 * if the user just changed the advertised capabilities, but there's no
235 * harm doing this twice */
236 efx_mac_reconfigure(efx, false);
237
238 out:
239 mutex_unlock(&efx->mac_lock);
240
241 return rc;
242 }
243
244 /**
245 * efx_fill_test - fill in an individual self-test entry
246 * @test_index: Index of the test
247 * @strings: Ethtool strings, or %NULL
248 * @data: Ethtool test results, or %NULL
249 * @test: Pointer to test result (used only if data != %NULL)
250 * @unit_format: Unit name format (e.g. "chan\%d")
251 * @unit_id: Unit id (e.g. 0 for "chan0")
252 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
253 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
254 *
255 * Fill in an individual self-test entry.
256 */
257 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
258 int *test, const char *unit_format, int unit_id,
259 const char *test_format, const char *test_id)
260 {
261 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
262
263 /* Fill data value, if applicable */
264 if (data)
265 data[test_index] = *test;
266
267 /* Fill string, if applicable */
268 if (strings) {
269 if (strchr(unit_format, '%'))
270 snprintf(unit_str, sizeof(unit_str),
271 unit_format, unit_id);
272 else
273 strcpy(unit_str, unit_format);
274 snprintf(test_str, sizeof(test_str), test_format, test_id);
275 snprintf(strings + test_index * ETH_GSTRING_LEN,
276 ETH_GSTRING_LEN,
277 "%-6s %-24s", unit_str, test_str);
278 }
279 }
280
281 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
282 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
283 #define EFX_LOOPBACK_NAME(_mode, _counter) \
284 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
285
286 /**
287 * efx_fill_loopback_test - fill in a block of loopback self-test entries
288 * @efx: Efx NIC
289 * @lb_tests: Efx loopback self-test results structure
290 * @mode: Loopback test mode
291 * @test_index: Starting index of the test
292 * @strings: Ethtool strings, or %NULL
293 * @data: Ethtool test results, or %NULL
294 *
295 * Fill in a block of loopback self-test entries. Return new test
296 * index.
297 */
298 static int efx_fill_loopback_test(struct efx_nic *efx,
299 struct efx_loopback_self_tests *lb_tests,
300 enum efx_loopback_mode mode,
301 unsigned int test_index,
302 u8 *strings, u64 *data)
303 {
304 struct efx_channel *channel =
305 efx_get_channel(efx, efx->tx_channel_offset);
306 struct efx_tx_queue *tx_queue;
307
308 efx_for_each_channel_tx_queue(tx_queue, channel) {
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->tx_sent[tx_queue->label],
311 EFX_TX_QUEUE_NAME(tx_queue),
312 EFX_LOOPBACK_NAME(mode, "tx_sent"));
313 efx_fill_test(test_index++, strings, data,
314 &lb_tests->tx_done[tx_queue->label],
315 EFX_TX_QUEUE_NAME(tx_queue),
316 EFX_LOOPBACK_NAME(mode, "tx_done"));
317 }
318 efx_fill_test(test_index++, strings, data,
319 &lb_tests->rx_good,
320 "rx", 0,
321 EFX_LOOPBACK_NAME(mode, "rx_good"));
322 efx_fill_test(test_index++, strings, data,
323 &lb_tests->rx_bad,
324 "rx", 0,
325 EFX_LOOPBACK_NAME(mode, "rx_bad"));
326
327 return test_index;
328 }
329
330 /**
331 * efx_ethtool_fill_self_tests - get self-test details
332 * @efx: Efx NIC
333 * @tests: Efx self-test results structure, or %NULL
334 * @strings: Ethtool strings, or %NULL
335 * @data: Ethtool test results, or %NULL
336 *
337 * Get self-test number of strings, strings, and/or test results.
338 * Return number of strings (== number of test results).
339 *
340 * The reason for merging these three functions is to make sure that
341 * they can never be inconsistent.
342 */
343 int efx_ethtool_fill_self_tests(struct efx_nic *efx,
344 struct efx_self_tests *tests,
345 u8 *strings, u64 *data)
346 {
347 struct efx_channel *channel;
348 unsigned int n = 0, i;
349 enum efx_loopback_mode mode;
350
351 efx_fill_test(n++, strings, data, &tests->phy_alive,
352 "phy", 0, "alive", NULL);
353 efx_fill_test(n++, strings, data, &tests->nvram,
354 "core", 0, "nvram", NULL);
355 efx_fill_test(n++, strings, data, &tests->interrupt,
356 "core", 0, "interrupt", NULL);
357
358 /* Event queues */
359 efx_for_each_channel(channel, efx) {
360 efx_fill_test(n++, strings, data,
361 &tests->eventq_dma[channel->channel],
362 EFX_CHANNEL_NAME(channel),
363 "eventq.dma", NULL);
364 efx_fill_test(n++, strings, data,
365 &tests->eventq_int[channel->channel],
366 EFX_CHANNEL_NAME(channel),
367 "eventq.int", NULL);
368 }
369
370 efx_fill_test(n++, strings, data, &tests->memory,
371 "core", 0, "memory", NULL);
372 efx_fill_test(n++, strings, data, &tests->registers,
373 "core", 0, "registers", NULL);
374
375 for (i = 0; true; ++i) {
376 const char *name;
377
378 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
379 name = efx_mcdi_phy_test_name(efx, i);
380 if (name == NULL)
381 break;
382
383 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
384 }
385
386 /* Loopback tests */
387 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
388 if (!(efx->loopback_modes & (1 << mode)))
389 continue;
390 n = efx_fill_loopback_test(efx,
391 &tests->loopback[mode], mode, n,
392 strings, data);
393 }
394
395 return n;
396 }
397
398 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 **strings)
399 {
400 size_t n_stats = 0;
401 struct efx_channel *channel;
402
403 efx_for_each_channel(channel, efx) {
404 if (efx_channel_has_tx_queues(channel)) {
405 n_stats++;
406 if (!strings)
407 continue;
408
409 ethtool_sprintf(strings, "tx-%u.tx_packets",
410 channel->tx_queue[0].queue /
411 EFX_MAX_TXQ_PER_CHANNEL);
412 }
413 }
414 efx_for_each_channel(channel, efx) {
415 if (efx_channel_has_rx_queue(channel)) {
416 n_stats++;
417 if (!strings)
418 continue;
419
420 ethtool_sprintf(strings, "rx-%d.rx_packets",
421 channel->channel);
422 }
423 }
424 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
425 unsigned short xdp;
426
427 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
428 n_stats++;
429 if (!strings)
430 continue;
431
432 ethtool_sprintf(strings, "tx-xdp-cpu-%hu.tx_packets",
433 xdp);
434 }
435 }
436
437 return n_stats;
438 }
439
440 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
441 {
442 struct efx_nic *efx = efx_netdev_priv(net_dev);
443
444 switch (string_set) {
445 case ETH_SS_STATS:
446 return efx->type->describe_stats(efx, NULL) +
447 EFX_ETHTOOL_SW_STAT_COUNT +
448 efx_describe_per_queue_stats(efx, NULL) +
449 efx_ptp_describe_stats(efx, NULL);
450 case ETH_SS_TEST:
451 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
452 default:
453 return -EINVAL;
454 }
455 }
456
457 void efx_ethtool_get_strings(struct net_device *net_dev,
458 u32 string_set, u8 *strings)
459 {
460 struct efx_nic *efx = efx_netdev_priv(net_dev);
461 int i;
462
463 switch (string_set) {
464 case ETH_SS_STATS:
465 efx->type->describe_stats(efx, &strings);
466 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
467 ethtool_puts(&strings, efx_sw_stat_desc[i].name);
468 efx_describe_per_queue_stats(efx, &strings);
469 efx_ptp_describe_stats(efx, &strings);
470 break;
471 case ETH_SS_TEST:
472 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
473 break;
474 default:
475 /* No other string sets */
476 break;
477 }
478 }
479
480 void efx_ethtool_get_stats(struct net_device *net_dev,
481 struct ethtool_stats *stats,
482 u64 *data)
483 {
484 struct efx_nic *efx = efx_netdev_priv(net_dev);
485 const struct efx_sw_stat_desc *stat;
486 struct efx_channel *channel;
487 struct efx_tx_queue *tx_queue;
488 struct efx_rx_queue *rx_queue;
489 int i;
490
491 spin_lock_bh(&efx->stats_lock);
492
493 /* Get NIC statistics */
494 data += efx->type->update_stats(efx, data, NULL);
495
496 /* Get software statistics */
497 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
498 stat = &efx_sw_stat_desc[i];
499 switch (stat->source) {
500 case EFX_ETHTOOL_STAT_SOURCE_nic:
501 data[i] = stat->get_stat((void *)efx + stat->offset);
502 break;
503 case EFX_ETHTOOL_STAT_SOURCE_channel:
504 data[i] = 0;
505 efx_for_each_channel(channel, efx)
506 data[i] += stat->get_stat((void *)channel +
507 stat->offset);
508 break;
509 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
510 data[i] = 0;
511 efx_for_each_channel(channel, efx) {
512 efx_for_each_channel_tx_queue(tx_queue, channel)
513 data[i] +=
514 stat->get_stat((void *)tx_queue
515 + stat->offset);
516 }
517 break;
518 }
519 }
520 data += EFX_ETHTOOL_SW_STAT_COUNT;
521
522 spin_unlock_bh(&efx->stats_lock);
523
524 efx_for_each_channel(channel, efx) {
525 if (efx_channel_has_tx_queues(channel)) {
526 *data = 0;
527 efx_for_each_channel_tx_queue(tx_queue, channel) {
528 *data += tx_queue->tx_packets;
529 }
530 data++;
531 }
532 }
533 efx_for_each_channel(channel, efx) {
534 if (efx_channel_has_rx_queue(channel)) {
535 *data = 0;
536 efx_for_each_channel_rx_queue(rx_queue, channel) {
537 *data += rx_queue->rx_packets;
538 }
539 data++;
540 }
541 }
542 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
543 int xdp;
544
545 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
546 data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
547 data++;
548 }
549 }
550
551 efx_ptp_update_stats(efx, data);
552 }
553
554 /* This must be called with rtnl_lock held. */
555 int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
556 struct ethtool_link_ksettings *cmd)
557 {
558 struct efx_nic *efx = efx_netdev_priv(net_dev);
559 struct efx_link_state *link_state = &efx->link_state;
560
561 mutex_lock(&efx->mac_lock);
562 efx_mcdi_phy_get_link_ksettings(efx, cmd);
563 mutex_unlock(&efx->mac_lock);
564
565 /* Both MACs support pause frames (bidirectional and respond-only) */
566 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
567 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
568
569 if (LOOPBACK_INTERNAL(efx)) {
570 cmd->base.speed = link_state->speed;
571 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
572 }
573
574 return 0;
575 }
576
577 /* This must be called with rtnl_lock held. */
578 int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
579 const struct ethtool_link_ksettings *cmd)
580 {
581 struct efx_nic *efx = efx_netdev_priv(net_dev);
582 int rc;
583
584 /* GMAC does not support 1000Mbps HD */
585 if ((cmd->base.speed == SPEED_1000) &&
586 (cmd->base.duplex != DUPLEX_FULL)) {
587 netif_dbg(efx, drv, efx->net_dev,
588 "rejecting unsupported 1000Mbps HD setting\n");
589 return -EINVAL;
590 }
591
592 mutex_lock(&efx->mac_lock);
593 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
594 mutex_unlock(&efx->mac_lock);
595 return rc;
596 }
597
598 int efx_ethtool_get_fecparam(struct net_device *net_dev,
599 struct ethtool_fecparam *fecparam)
600 {
601 struct efx_nic *efx = efx_netdev_priv(net_dev);
602 int rc;
603
604 mutex_lock(&efx->mac_lock);
605 rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
606 mutex_unlock(&efx->mac_lock);
607
608 return rc;
609 }
610
611 int efx_ethtool_set_fecparam(struct net_device *net_dev,
612 struct ethtool_fecparam *fecparam)
613 {
614 struct efx_nic *efx = efx_netdev_priv(net_dev);
615 int rc;
616
617 mutex_lock(&efx->mac_lock);
618 rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
619 mutex_unlock(&efx->mac_lock);
620
621 return rc;
622 }
623
624 /* MAC address mask including only I/G bit */
625 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
626
627 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
628 #define IP_PROTO_FULL_MASK 0xFF
629 #define PORT_FULL_MASK ((__force __be16)~0)
630 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
631
632 static inline void ip6_fill_mask(__be32 *mask)
633 {
634 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
635 }
636
637 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
638 struct ethtool_rx_flow_spec *rule,
639 u32 *rss_context)
640 {
641 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
642 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
643 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
644 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
645 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
646 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
647 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
648 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
649 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
650 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
651 struct efx_filter_spec spec;
652 int rc;
653
654 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
655 rule->location, &spec);
656 if (rc)
657 return rc;
658
659 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
660 rule->ring_cookie = RX_CLS_FLOW_DISC;
661 else
662 rule->ring_cookie = spec.dmaq_id;
663
664 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
665 spec.ether_type == htons(ETH_P_IP) &&
666 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
667 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
668 !(spec.match_flags &
669 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
670 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
671 EFX_FILTER_MATCH_IP_PROTO |
672 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
673 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
674 TCP_V4_FLOW : UDP_V4_FLOW);
675 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
676 ip_entry->ip4dst = spec.loc_host[0];
677 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
678 }
679 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
680 ip_entry->ip4src = spec.rem_host[0];
681 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
682 }
683 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
684 ip_entry->pdst = spec.loc_port;
685 ip_mask->pdst = PORT_FULL_MASK;
686 }
687 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
688 ip_entry->psrc = spec.rem_port;
689 ip_mask->psrc = PORT_FULL_MASK;
690 }
691 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
692 spec.ether_type == htons(ETH_P_IPV6) &&
693 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
694 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
695 !(spec.match_flags &
696 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
697 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
698 EFX_FILTER_MATCH_IP_PROTO |
699 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
700 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
701 TCP_V6_FLOW : UDP_V6_FLOW);
702 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
703 memcpy(ip6_entry->ip6dst, spec.loc_host,
704 sizeof(ip6_entry->ip6dst));
705 ip6_fill_mask(ip6_mask->ip6dst);
706 }
707 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
708 memcpy(ip6_entry->ip6src, spec.rem_host,
709 sizeof(ip6_entry->ip6src));
710 ip6_fill_mask(ip6_mask->ip6src);
711 }
712 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
713 ip6_entry->pdst = spec.loc_port;
714 ip6_mask->pdst = PORT_FULL_MASK;
715 }
716 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
717 ip6_entry->psrc = spec.rem_port;
718 ip6_mask->psrc = PORT_FULL_MASK;
719 }
720 } else if (!(spec.match_flags &
721 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
722 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
723 EFX_FILTER_MATCH_OUTER_VID))) {
724 rule->flow_type = ETHER_FLOW;
725 if (spec.match_flags &
726 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
727 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
728 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
729 eth_broadcast_addr(mac_mask->h_dest);
730 else
731 ether_addr_copy(mac_mask->h_dest,
732 mac_addr_ig_mask);
733 }
734 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
735 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
736 eth_broadcast_addr(mac_mask->h_source);
737 }
738 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
739 mac_entry->h_proto = spec.ether_type;
740 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
741 }
742 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
743 spec.ether_type == htons(ETH_P_IP) &&
744 !(spec.match_flags &
745 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
746 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
747 EFX_FILTER_MATCH_IP_PROTO))) {
748 rule->flow_type = IPV4_USER_FLOW;
749 uip_entry->ip_ver = ETH_RX_NFC_IP4;
750 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
751 uip_mask->proto = IP_PROTO_FULL_MASK;
752 uip_entry->proto = spec.ip_proto;
753 }
754 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
755 uip_entry->ip4dst = spec.loc_host[0];
756 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
757 }
758 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
759 uip_entry->ip4src = spec.rem_host[0];
760 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
761 }
762 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
763 spec.ether_type == htons(ETH_P_IPV6) &&
764 !(spec.match_flags &
765 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
766 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
767 EFX_FILTER_MATCH_IP_PROTO))) {
768 rule->flow_type = IPV6_USER_FLOW;
769 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
770 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
771 uip6_entry->l4_proto = spec.ip_proto;
772 }
773 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
774 memcpy(uip6_entry->ip6dst, spec.loc_host,
775 sizeof(uip6_entry->ip6dst));
776 ip6_fill_mask(uip6_mask->ip6dst);
777 }
778 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
779 memcpy(uip6_entry->ip6src, spec.rem_host,
780 sizeof(uip6_entry->ip6src));
781 ip6_fill_mask(uip6_mask->ip6src);
782 }
783 } else {
784 /* The above should handle all filters that we insert */
785 WARN_ON(1);
786 return -EINVAL;
787 }
788
789 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
790 rule->flow_type |= FLOW_EXT;
791 rule->h_ext.vlan_tci = spec.outer_vid;
792 rule->m_ext.vlan_tci = htons(0xfff);
793 }
794
795 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
796 rule->flow_type |= FLOW_RSS;
797 *rss_context = spec.rss_context;
798 }
799
800 return rc;
801 }
802
803 int efx_ethtool_get_rxnfc(struct net_device *net_dev,
804 struct ethtool_rxnfc *info, u32 *rule_locs)
805 {
806 struct efx_nic *efx = efx_netdev_priv(net_dev);
807 u32 rss_context = 0;
808 s32 rc = 0;
809
810 switch (info->cmd) {
811 case ETHTOOL_GRXRINGS:
812 info->data = efx->n_rx_channels;
813 return 0;
814
815 case ETHTOOL_GRXFH: {
816 struct efx_rss_context_priv *ctx = &efx->rss_context.priv;
817 __u64 data;
818
819 mutex_lock(&net_dev->ethtool->rss_lock);
820 if (info->flow_type & FLOW_RSS && info->rss_context) {
821 ctx = efx_find_rss_context_entry(efx, info->rss_context);
822 if (!ctx) {
823 rc = -ENOENT;
824 goto out_unlock;
825 }
826 }
827
828 data = 0;
829 if (!efx_rss_active(ctx)) /* No RSS */
830 goto out_setdata_unlock;
831
832 switch (info->flow_type & ~FLOW_RSS) {
833 case UDP_V4_FLOW:
834 case UDP_V6_FLOW:
835 if (ctx->rx_hash_udp_4tuple)
836 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
837 RXH_IP_SRC | RXH_IP_DST);
838 else
839 data = RXH_IP_SRC | RXH_IP_DST;
840 break;
841 case TCP_V4_FLOW:
842 case TCP_V6_FLOW:
843 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
844 RXH_IP_SRC | RXH_IP_DST);
845 break;
846 case SCTP_V4_FLOW:
847 case SCTP_V6_FLOW:
848 case AH_ESP_V4_FLOW:
849 case AH_ESP_V6_FLOW:
850 case IPV4_FLOW:
851 case IPV6_FLOW:
852 data = RXH_IP_SRC | RXH_IP_DST;
853 break;
854 default:
855 break;
856 }
857 out_setdata_unlock:
858 info->data = data;
859 out_unlock:
860 mutex_unlock(&net_dev->ethtool->rss_lock);
861 return rc;
862 }
863
864 case ETHTOOL_GRXCLSRLCNT:
865 info->data = efx_filter_get_rx_id_limit(efx);
866 if (info->data == 0)
867 return -EOPNOTSUPP;
868 info->data |= RX_CLS_LOC_SPECIAL;
869 info->rule_cnt =
870 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
871 return 0;
872
873 case ETHTOOL_GRXCLSRULE:
874 if (efx_filter_get_rx_id_limit(efx) == 0)
875 return -EOPNOTSUPP;
876 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
877 if (rc < 0)
878 return rc;
879 if (info->fs.flow_type & FLOW_RSS)
880 info->rss_context = rss_context;
881 return 0;
882
883 case ETHTOOL_GRXCLSRLALL:
884 info->data = efx_filter_get_rx_id_limit(efx);
885 if (info->data == 0)
886 return -EOPNOTSUPP;
887 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
888 rule_locs, info->rule_cnt);
889 if (rc < 0)
890 return rc;
891 info->rule_cnt = rc;
892 return 0;
893
894 default:
895 return -EOPNOTSUPP;
896 }
897 }
898
899 static inline bool ip6_mask_is_full(__be32 mask[4])
900 {
901 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
902 }
903
904 static inline bool ip6_mask_is_empty(__be32 mask[4])
905 {
906 return !(mask[0] | mask[1] | mask[2] | mask[3]);
907 }
908
909 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
910 struct ethtool_rx_flow_spec *rule,
911 u32 rss_context)
912 {
913 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
914 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
915 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
916 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
917 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
918 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
919 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
920 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
921 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
922 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
923 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
924 enum efx_filter_flags flags = 0;
925 struct efx_filter_spec spec;
926 int rc;
927
928 /* Check that user wants us to choose the location */
929 if (rule->location != RX_CLS_LOC_ANY)
930 return -EINVAL;
931
932 /* Range-check ring_cookie */
933 if (rule->ring_cookie >= efx->n_rx_channels &&
934 rule->ring_cookie != RX_CLS_FLOW_DISC)
935 return -EINVAL;
936
937 /* Check for unsupported extensions */
938 if ((rule->flow_type & FLOW_EXT) &&
939 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
940 rule->m_ext.data[1]))
941 return -EINVAL;
942
943 if (efx->rx_scatter)
944 flags |= EFX_FILTER_FLAG_RX_SCATTER;
945 if (rule->flow_type & FLOW_RSS)
946 flags |= EFX_FILTER_FLAG_RX_RSS;
947
948 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
949 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
950 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
951
952 if (rule->flow_type & FLOW_RSS)
953 spec.rss_context = rss_context;
954
955 switch (flow_type) {
956 case TCP_V4_FLOW:
957 case UDP_V4_FLOW:
958 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
959 EFX_FILTER_MATCH_IP_PROTO);
960 spec.ether_type = htons(ETH_P_IP);
961 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
962 : IPPROTO_UDP;
963 if (ip_mask->ip4dst) {
964 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
965 return -EINVAL;
966 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
967 spec.loc_host[0] = ip_entry->ip4dst;
968 }
969 if (ip_mask->ip4src) {
970 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
971 return -EINVAL;
972 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
973 spec.rem_host[0] = ip_entry->ip4src;
974 }
975 if (ip_mask->pdst) {
976 if (ip_mask->pdst != PORT_FULL_MASK)
977 return -EINVAL;
978 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
979 spec.loc_port = ip_entry->pdst;
980 }
981 if (ip_mask->psrc) {
982 if (ip_mask->psrc != PORT_FULL_MASK)
983 return -EINVAL;
984 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
985 spec.rem_port = ip_entry->psrc;
986 }
987 if (ip_mask->tos)
988 return -EINVAL;
989 break;
990
991 case TCP_V6_FLOW:
992 case UDP_V6_FLOW:
993 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
994 EFX_FILTER_MATCH_IP_PROTO);
995 spec.ether_type = htons(ETH_P_IPV6);
996 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
997 : IPPROTO_UDP;
998 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
999 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1000 return -EINVAL;
1001 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1002 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1003 }
1004 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1005 if (!ip6_mask_is_full(ip6_mask->ip6src))
1006 return -EINVAL;
1007 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1008 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1009 }
1010 if (ip6_mask->pdst) {
1011 if (ip6_mask->pdst != PORT_FULL_MASK)
1012 return -EINVAL;
1013 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1014 spec.loc_port = ip6_entry->pdst;
1015 }
1016 if (ip6_mask->psrc) {
1017 if (ip6_mask->psrc != PORT_FULL_MASK)
1018 return -EINVAL;
1019 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1020 spec.rem_port = ip6_entry->psrc;
1021 }
1022 if (ip6_mask->tclass)
1023 return -EINVAL;
1024 break;
1025
1026 case IPV4_USER_FLOW:
1027 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1028 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1029 return -EINVAL;
1030 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1031 spec.ether_type = htons(ETH_P_IP);
1032 if (uip_mask->ip4dst) {
1033 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1034 return -EINVAL;
1035 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1036 spec.loc_host[0] = uip_entry->ip4dst;
1037 }
1038 if (uip_mask->ip4src) {
1039 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1040 return -EINVAL;
1041 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1042 spec.rem_host[0] = uip_entry->ip4src;
1043 }
1044 if (uip_mask->proto) {
1045 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1046 return -EINVAL;
1047 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1048 spec.ip_proto = uip_entry->proto;
1049 }
1050 break;
1051
1052 case IPV6_USER_FLOW:
1053 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1054 return -EINVAL;
1055 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1056 spec.ether_type = htons(ETH_P_IPV6);
1057 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1058 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1059 return -EINVAL;
1060 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1061 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1062 }
1063 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1064 if (!ip6_mask_is_full(uip6_mask->ip6src))
1065 return -EINVAL;
1066 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1067 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1068 }
1069 if (uip6_mask->l4_proto) {
1070 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1071 return -EINVAL;
1072 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1073 spec.ip_proto = uip6_entry->l4_proto;
1074 }
1075 break;
1076
1077 case ETHER_FLOW:
1078 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1079 if (ether_addr_equal(mac_mask->h_dest,
1080 mac_addr_ig_mask))
1081 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1082 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1083 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1084 else
1085 return -EINVAL;
1086 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1087 }
1088 if (!is_zero_ether_addr(mac_mask->h_source)) {
1089 if (!is_broadcast_ether_addr(mac_mask->h_source))
1090 return -EINVAL;
1091 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1092 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1093 }
1094 if (mac_mask->h_proto) {
1095 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1096 return -EINVAL;
1097 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1098 spec.ether_type = mac_entry->h_proto;
1099 }
1100 break;
1101
1102 default:
1103 return -EINVAL;
1104 }
1105
1106 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1107 if (rule->m_ext.vlan_tci != htons(0xfff))
1108 return -EINVAL;
1109 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1110 spec.outer_vid = rule->h_ext.vlan_tci;
1111 }
1112
1113 rc = efx_filter_insert_filter(efx, &spec, true);
1114 if (rc < 0)
1115 return rc;
1116
1117 rule->location = rc;
1118 return 0;
1119 }
1120
1121 int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1122 struct ethtool_rxnfc *info)
1123 {
1124 struct efx_nic *efx = efx_netdev_priv(net_dev);
1125
1126 if (efx_filter_get_rx_id_limit(efx) == 0)
1127 return -EOPNOTSUPP;
1128
1129 switch (info->cmd) {
1130 case ETHTOOL_SRXCLSRLINS:
1131 return efx_ethtool_set_class_rule(efx, &info->fs,
1132 info->rss_context);
1133
1134 case ETHTOOL_SRXCLSRLDEL:
1135 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1136 info->fs.location);
1137
1138 default:
1139 return -EOPNOTSUPP;
1140 }
1141 }
1142
1143 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1144 {
1145 struct efx_nic *efx = efx_netdev_priv(net_dev);
1146
1147 if (efx->n_rx_channels == 1)
1148 return 0;
1149 return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1150 }
1151
1152 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1153 {
1154 struct efx_nic *efx = efx_netdev_priv(net_dev);
1155
1156 return efx->type->rx_hash_key_size;
1157 }
1158
1159 int efx_ethtool_get_rxfh(struct net_device *net_dev,
1160 struct ethtool_rxfh_param *rxfh)
1161 {
1162 struct efx_nic *efx = efx_netdev_priv(net_dev);
1163 int rc;
1164
1165 if (rxfh->rss_context) /* core should never call us for these */
1166 return -EINVAL;
1167
1168 rc = efx->type->rx_pull_rss_config(efx);
1169 if (rc)
1170 return rc;
1171
1172 rxfh->hfunc = ETH_RSS_HASH_TOP;
1173 if (rxfh->indir)
1174 memcpy(rxfh->indir, efx->rss_context.rx_indir_table,
1175 sizeof(efx->rss_context.rx_indir_table));
1176 if (rxfh->key)
1177 memcpy(rxfh->key, efx->rss_context.rx_hash_key,
1178 efx->type->rx_hash_key_size);
1179 return 0;
1180 }
1181
1182 int efx_ethtool_modify_rxfh_context(struct net_device *net_dev,
1183 struct ethtool_rxfh_context *ctx,
1184 const struct ethtool_rxfh_param *rxfh,
1185 struct netlink_ext_ack *extack)
1186 {
1187 struct efx_nic *efx = efx_netdev_priv(net_dev);
1188 struct efx_rss_context_priv *priv;
1189 const u32 *indir = rxfh->indir;
1190 const u8 *key = rxfh->key;
1191
1192 if (!efx->type->rx_push_rss_context_config) {
1193 NL_SET_ERR_MSG_MOD(extack,
1194 "NIC type does not support custom contexts");
1195 return -EOPNOTSUPP;
1196 }
1197 /* Hash function is Toeplitz, cannot be changed */
1198 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1199 rxfh->hfunc != ETH_RSS_HASH_TOP) {
1200 NL_SET_ERR_MSG_MOD(extack, "Only Toeplitz hash is supported");
1201 return -EOPNOTSUPP;
1202 }
1203
1204 priv = ethtool_rxfh_context_priv(ctx);
1205
1206 if (!key)
1207 key = ethtool_rxfh_context_key(ctx);
1208 if (!indir)
1209 indir = ethtool_rxfh_context_indir(ctx);
1210
1211 return efx->type->rx_push_rss_context_config(efx, priv, indir, key,
1212 false);
1213 }
1214
1215 int efx_ethtool_create_rxfh_context(struct net_device *net_dev,
1216 struct ethtool_rxfh_context *ctx,
1217 const struct ethtool_rxfh_param *rxfh,
1218 struct netlink_ext_ack *extack)
1219 {
1220 struct efx_nic *efx = efx_netdev_priv(net_dev);
1221 struct efx_rss_context_priv *priv;
1222
1223 priv = ethtool_rxfh_context_priv(ctx);
1224
1225 priv->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1226 priv->rx_hash_udp_4tuple = false;
1227 /* Generate default indir table and/or key if not specified.
1228 * We use ctx as a place to store these; this is fine because
1229 * we're doing a create, so if we fail then the ctx will just
1230 * be deleted.
1231 */
1232 if (!rxfh->indir)
1233 efx_set_default_rx_indir_table(efx, ethtool_rxfh_context_indir(ctx));
1234 if (!rxfh->key)
1235 netdev_rss_key_fill(ethtool_rxfh_context_key(ctx),
1236 ctx->key_size);
1237 if (rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE)
1238 ctx->hfunc = ETH_RSS_HASH_TOP;
1239 if (rxfh->input_xfrm == RXH_XFRM_NO_CHANGE)
1240 ctx->input_xfrm = 0;
1241 return efx_ethtool_modify_rxfh_context(net_dev, ctx, rxfh, extack);
1242 }
1243
1244 int efx_ethtool_remove_rxfh_context(struct net_device *net_dev,
1245 struct ethtool_rxfh_context *ctx,
1246 u32 rss_context,
1247 struct netlink_ext_ack *extack)
1248 {
1249 struct efx_nic *efx = efx_netdev_priv(net_dev);
1250 struct efx_rss_context_priv *priv;
1251
1252 if (!efx->type->rx_push_rss_context_config) {
1253 NL_SET_ERR_MSG_MOD(extack,
1254 "NIC type does not support custom contexts");
1255 return -EOPNOTSUPP;
1256 }
1257
1258 priv = ethtool_rxfh_context_priv(ctx);
1259 return efx->type->rx_push_rss_context_config(efx, priv, NULL, NULL,
1260 true);
1261 }
1262
1263 int efx_ethtool_set_rxfh(struct net_device *net_dev,
1264 struct ethtool_rxfh_param *rxfh,
1265 struct netlink_ext_ack *extack)
1266 {
1267 struct efx_nic *efx = efx_netdev_priv(net_dev);
1268 u32 *indir = rxfh->indir;
1269 u8 *key = rxfh->key;
1270
1271 /* Hash function is Toeplitz, cannot be changed */
1272 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1273 rxfh->hfunc != ETH_RSS_HASH_TOP)
1274 return -EOPNOTSUPP;
1275
1276 /* Custom contexts should use new API */
1277 if (WARN_ON_ONCE(rxfh->rss_context))
1278 return -EIO;
1279
1280 if (!indir && !key)
1281 return 0;
1282
1283 if (!key)
1284 key = efx->rss_context.rx_hash_key;
1285 if (!indir)
1286 indir = efx->rss_context.rx_indir_table;
1287
1288 return efx->type->rx_push_rss_config(efx, true, indir, key);
1289 }
1290
1291 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1292 {
1293 struct efx_nic *efx = efx_netdev_priv(net_dev);
1294 int rc;
1295
1296 rc = efx->type->map_reset_flags(flags);
1297 if (rc < 0)
1298 return rc;
1299
1300 return efx_reset(efx, rc);
1301 }
1302
1303 int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1304 struct ethtool_eeprom *ee,
1305 u8 *data)
1306 {
1307 struct efx_nic *efx = efx_netdev_priv(net_dev);
1308 int ret;
1309
1310 mutex_lock(&efx->mac_lock);
1311 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1312 mutex_unlock(&efx->mac_lock);
1313
1314 return ret;
1315 }
1316
1317 int efx_ethtool_get_module_info(struct net_device *net_dev,
1318 struct ethtool_modinfo *modinfo)
1319 {
1320 struct efx_nic *efx = efx_netdev_priv(net_dev);
1321 int ret;
1322
1323 mutex_lock(&efx->mac_lock);
1324 ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1325 mutex_unlock(&efx->mac_lock);
1326
1327 return ret;
1328 }
Kernel DRM miscellaneous fixes and cross-tree changes